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《Acta Botanica Boreali-occidentalia Sinica》 2001-06
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Studies on heterosis of vernal hybrid F_1 of male sterile lines of Ven & K Typeal wheat and their relationship with chlorophyll content and zymogram of isoenzyme

WEI Yi qin 1,ZHANG Gai sheng 2,LI Shu hua 3,LI Guo qing 1,LIU Wang qing 1 LI Hong xia 1,ZHANG Shuang xi 1,GONG Yue juan 1,QIU Min 1,WANG Ping 1 (1 Crop Research Institute,Ningxia Academy of Agriculture and Forestry Science,Yongning,Nin  
Heterosis of vernal hybrid F 1 of Ven K Type and their relation ship with chlorophyll content and zymogram of isoenzyme were studied by intercrossing male sterile lines of Ven K typal wheat with North common spring wheat.The results showed that hybrids F 1 have significant individual heterosis.Among the main agronomic characters,heterosis of spikes per plant,thousand grain weight and productivity per plant were very obvious,especially spikes per plant made the most contribution to productivity per plant.Analysis indicated that productivity per plant was significantly correlated with spikes per plant and TGW,their phenotypic correlation coefficients were 0.7122 and 0.4941 ;but negatively correlated with grains per spike,its correlation coefficient was -0.1183.TGW was positively correlated with chlorophyll content of flag leaf and second leaf during filling stage.Peroxidase isoenzyme and esterase bands of seeds and offsprings of dominant combination appeared parents complementary type or hyrid type.This character may be regarded as target to foresee heterosis.
【Fund】: 国家自然科学基金资助项目 ( 39970 4 5 4 );; 宁夏“九五”攻关项目
【CateGory Index】: S512.120.1
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